An internal Verizon memo posted online by Engadget suggests the company sees the launch of the iPad as “an opportunity” to push its data service plans. The memo states that the 3G version of the iPad is $130 more than the Wi-Fi only model, plus the cost of 3G service, which comes “on an overloaded network with limited coverage.” As Engadget points out, however, unlimited iPad 3G data service on AT&T costs $30 per month…
